Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Fuel Delivery and Air Induction: Service and Repair

WARNING: To reduce the risk of fire and personal injury, it is necessary to relieve fuel system pressure before servicing fuel system components.
A small amount of fuel may be released when servicing fuel lines or connections. In order to reduce the chance of personal injury, cover fuel line fittings with a shop towel before disconnecting to catch any fuel that may leak out. Place the towel in an approved container when disconnect is complete.


- Remove fuel filler cap.
- Disconnect control relay (fuel pressure relay).
- Crank engine and allow it to stall.
- Crank engine for an additional 30 seconds.
- Remove negative battery cable.
- Place a shop towel under the fuel pressure line.
- Disconnect fuel pressure line.